Tags · skhynix/linux

v6.17

Linux 6.17

Sep 28, 2025
e5f0a69
zip
tar.gz

v6.11

Linux 6.11

Sep 15, 2024
98f7e32
zip
tar.gz

hmsdk-v2.0

hmsdk: Release hmsdk-v2.0

This is a new release hmsdk-v2.0 for 2-tier memory management.

Along with the existing bandwidth-aware interleaving in hmsdk-v1.1, this
includes another way to manage 2-tier memory by monitoring memory access
patterns and migrate pages depending on their access temperature.

The 2-tier memory management is supported via DAMON(Data Access MONitor)
framework and its DAMON-based Operation Schemes, called DAMOS.

This series supports two new DAMOS actions; demotion from fast tiers
and promotion from slow tiers. This prevents hot pages from being
stuck on slow tiers, which makes performance degradation and cold pages
can be proactively demoted to slow tiers so that the system can increase
the chance to allocate more hot pages to fast tiers.

Having these demote and promote actions makes the 2-tier memory system
run more efficiently.

Signed-off-by: Honggyu Kim <honggyu.kim@sk.com>
Signed-off-by: Hyeongtak Ji <hyeongtak.ji@sk.com>
Signed-off-by: Rakie Kim <rakie.kim@sk.com>